Factory can now be upgraded to level 7, unlocking the following upgrades

Machine Gun level 6

Commando level 6

Heavy Tank level 5

Bazooka level 4

Armored Car level 4

APC level 2

Sniper Tower can now be upgraded to level 6

Stable can now be upgraded to level 11

Embassy can now be upgraded to level 6

Unlocks the Ethiopian Coalition (available shortly after the required 5.7 update), which provides bonus Factory Troop health and General attack as well as the bazooka-toting Kagnew Infantry in World War attacks!